Process control system
We have built an integrated production system from material arrangement to final inspection, and manage the process to meet various requests from customers such as quality and delivery. Utilizing the know-how in each process accumulated through our experience so far, we manufacture high-quality products and realize accurate and speedy manufacturing. In addition, we maintain a rolling forging line and a free forging line in-house, and it can possible to manufacture with the optimum plan that suits the product.
Process image
Traceability
We have introduced the latest production management system to ensure traceability in all processes from receiving materials to shipping roducts. We have adopted individual management numbers for all products ordered by our customers, so that traceability can be confirmed instantly in any situation.
Process introduction/Management points
| Process | Introduction | Management point |
|---|---|---|
| Material management | We stock materials that have passed the PMI inspection and matching with the material certificate. Stock management is done according to appropriate management standards. |
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| Cutting | We select materials that can match applicable standards and customer requirements from the controlled materials and cut with a band saw the weight necessary for production. |
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| Heating | The material cut to the specified weight is properly placed inside the heating furnace and heated at the temperature specified in-house for each material. |
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| Forging | Hot forging is performed using a hydraulic press. At that time, it is possible to mold into a shape close to the product shape using a mold or a special tool. |
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| Ring Forging | Ring molding is performed using a ring rolling mill. High precision ring molding is realized by computer control. |
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| Heat treatment | By performing heat treatment according to applicable standards and in-house standards, it is possible to obtain the required strength and toughness for the material. Strict temperature control is required for heat treatment. |
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| Mechanical test | The performance of the material is confirmed by conducting tensile tests, impact tests, hardness tests, etc. The test results will be submitted in our material inspection report. |
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| Machining | Machining is performed based on the customer's drawing. Widely applicable from roughing to finishing that requires precision. |
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| Non-destructive inspection | Ultrasonic test (UT) , Magnetic particle test (MT) , Liquid penetration test (PT) are performed to check the defects on the surface and inside of the product. |
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| Final inspection | We perform appearance and dimension inspection of products and PMI inspection of stainless steel and non-ferrous metals. We also respond to special inspection requests from customers. |
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| Marking / Shipment | After marking the product with a predetermined identification mark, etc., we perform proper packing to prevent damage during transportation, and then ship with the necessary documents. |
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